Eric Mann

If you’re like me, you probably have to wade through a few hundred spammy comments on your blog. It can be annoying, stressful, frustrating, and a waste of time. Beyond that, spammy comments can fill up your database and make it a lot bulkier than it needs to be – particularly if you need to transfer it to a new server.
ClearSpam makes this a lot easier for you by adding a spam counter to the “Right Now” box on the dashboard along with a link that lets you instantly and easily purge spammy comments from the database. The plugin uses WordPress nonce filters, so people won’t be able to use the plugin to delete legitimate comments.

ClearSpam

Painlessly purge spammy comments from your WordPress database to save space.

Till Krüss

Purge the <a href="http://nginx.org" rel="nofollow ugc">Nginx</a> cache (FastCGI, Proxy, uWSGI) automatically when content changes or manually within WordPress.
Requirements:
<ul>
<li>The <a href="https://codex.wordpress.org/Filesystem_API" rel="nofollow ugc">Filesystem API</a> needs to function without asking for credentials.</li>
<li>Nginx and PHP need to run under the same user, or PHP’s user needs write access to Nginx’s cache path.</li>
</ul>

Nginx Cache

purge_zone() need to check that rmdir() can purge all cache files or not 

Not so good

Does one thing and does it well. Nice work! 

This allows me to simply use fastcgi_cache + this plugin and be done with it, versus much larger plugins like WP Super Cache.

Perfect

Awesome

Doesn't purge Hindi encoded URL permalink 

Great plugin with some minor issues

Purge the Nginx cache (FastCGI, Proxy, uWSGI) automatically when content changes or manually within WordPress.

ClearSpam vs Nginx Cache